Liquid-dispensing system



May 15, 1923. 1,454,71

S. D. LOVE LIQUID DISPENSiNG SYSTEM Filed April 13 1920 ATTORNEYS 7shown in Fig. 1.

Patented May 15, 1923.

UNITED STATES "AiTEN-T OFFICE.

SAMUEL DONNELLON LOVE, OF RAHWAY, 'NEW JERSEY, .ASSIGNOR TO ALLENPRESSURE SYSTEM CO. I1\TC., OF NEW YORK, N. Y., A CORPORATION NEW YORK.

Application filed April 13,1920. ,Seiial No. 373,634.

To all whom it may concern:

Be it known that I, SAMUnL DONNELLON LOVE, a citizen of. the UnitedStates of America, residing at Rahway, in the county I of Union andState of New Jersey, have invented certain new and useful Improvementsin Liquid-Dispensin Systems, of which the following is a speci cation.

My invention relates to liquid dispensing systems, and particularly tothe arrangement of the piping and valves controlling the dischargefromthe'working tank in a system such as that described in the copendingapplication of'Charles McKay, Ser. No. 368,099, filed March 23, 1920.The object'of my invention is to further simpl fy the piping and valvearrangement to fac litate the removal of the valves for repairs,replacement, etc.

In the accompanying drawing Fig.1 is a vertical section of aninstallation in which my invention is embodied in one form; and I Fig. 2is a section through the non-return valve fitting taken at right anglesto that The installation is in. general of the type shown in the AllenPatent No. 1,237,144,,

and comprises a subterranean main reservoir or storage tank 5 and anassociated small working tank 6, which, in the present construction, isfilled by gravity from the main tank through the pipes 7 and 8. Anon-return valve 9 mounted in the valvefitting 10- prevents the backwardflow of the liquid-- elbows 17 and coupling 18 with the main dischargepipe line 19, which, as here shown,

is carried beneath the ground to a suitable point of discharge. 7

In order to efiect a'discharge of the working tank 6, a compressed air,line 20 is used, which is connected by a T-fitting21 withLIQUID-DISPENSING SYSTEM,

.3 v the branch pipe 22,opening at 23 to the top of the working tank 6.The air line is also continued from the T-fitting 21 and opens at 24 tothe top of the standard 25.

The upperportion of the standard 25 is of greater diameter than thelower portion, and the intermediate portion is conedto form a seat forthe valve fitting 10, which is ground to make a snug fit with its seatin the standard. The lowerportion of the standard' is ofsuflicient'diamete'r to permit the float valve 14.- and foot piece-12 onsection I 11 of the discharge pipe to 'be drawn up therethyough. Atits'upper end the standard is closed by a cap 26 secured in position bybolts 27, the nuts 28 for which are arranged above the cap. A washer 29may be interposed between the cap and the top flange of the standard tomaintain a tight joint.

It will-be noted that the valve fitting 10 has a chamber 30 in which thevalve 9 rises,

and that this chamber communicates through 4 ports 31 with the upperportion of the standard25 as Well.as,with the fill pipe 8 leading to theworking tank. This construction simplifies the construction of the valvefitting 10. While the latter might be provided with a port opening only.to the pipe 8 from the chamber 30, it is simpler to permit the liquid toflow into the standard 25, and an exact registry of the fitting 1O l andthe pipe 8 is thus not required.

The check valve 9' closes-when the air line is, however, desirable as anadded precaution. Obviously, if the liquid level is so low that there isno liquid in the standard 25,

the air pressure upon the. liquid which, is always in the valve chamber30 closes the" 1 Valve."

I The operation .of the device is readily understood. The apparatus isshown in the drawing in the condition in which it would be after, aconsiderable quantity has been drawn from the working tank 6. The checkvalve 9 is shown seated under the pressure it is merely necessary toopen the couplings.

of the air admitted through ports 23 and tank, again filling the latter,and rising in the standard 25 to the level of the liquid in thereservoir 5; Even should the liquid rise to the level of the air lineand enter the latter, no harm would result, since the compressed airwhen again admitted would force the oil out of theair line and into theworkingtank.

In order to remove the valves for repairs,

. between the pipe sections above the cap 26 of the standard, and removethe nuts 28 by which the cap is held in position. Upon lifting the cap26, the discharge pipe, nonreturn valve fitting 10, float valve 14, andfoot piece 12 are all withdrawnthrough the standard and may be readilyrepaired or replaced without disturbing the main installation. Thisarrangement has the .advan tage of eliminating the necessity'for aworking pit, such as is required in the-McKay system, in order to obtainaccess to the check and gate valves. The gate valve is dispensed with inthe present construction as unnecessary, since the liquid may rise inthe standard 25, or even into the shallow chamber 32 in which the cap 26is located, without seriously inconveniencing the workmen in the removalof the cap 26. Ordinarily, however, repairs would not be undertakenuntil the level of the liquid in the reservoir 5 is such that it risesin the standtank 5, but also the working tank 6 and associated parts maybe buried in concrete or dirt 34, thus insuring greater safety from fireor explosion.

Various modifications in the system and arrangement of parts willreadily occurto those dealing with the problem, without departing fromwhat I claim as my invention.'

I claim- 1. In a liquid dispensing system, a storage tank, a workingtank filled by gravity therefrom, a standard rising from the workingtank, a discharge pipe passing upward from the working tank through thestandard, a non-return valve fitting arranged in said standard andconnected to the discharge pipe and having a by-pass communicating withthe latter, and a fill pipe opening through the standard to saidnon-return I valve fitting and serving to convey liquid from the storagetank to the working tank through the non-return valve passage in saidfitting.

2. In a liquid dispensing system, a storage tank, a working tank filledby gravity therefrom, a standard rising from the working tank, adischarge pipe passing upassa e in said fittin said non-return valvefitting, and discharge pipe being readily removable through the standardfrom working position Without disturbing the installation of either thestandard or the fill pipe.

3. In a liquid dispensing system, a storage tank, a working tank filledby gravity therefrom, a standard rising from the working tank, adischarge pipe passing upward from the working tank through thestandard, a non-return valve fitting arranged in said standardandconnected to the discharge pipe and having a by-pass' communicatingwith the latter, and a fill pipe opening through the standard to saidnon-return valve'fitting and serving to convey liquid from the storagetank to the working tank through the non-return valve passage in saidfitting,'in combination with a float valve on the discharge pipe withinthe working tank, said discharge pipe, float.

tank through said standard, a anon-return valve fitting vmounted in saidpipe and freely-seated in said standard and having a by-passcommunicating with said discharge pipe, av fill pipe opening throughsaid standard to the non-return valve fitting, a

passage opening from the working tank to the non-return valve fitting topermit the filling of the tank through said fitting from the fill pipe.

5. In a liquid dispensing system, a workink tank, a standard risingtherefrom, a discharge pipe'passing up through the standard from theworking tank, a non-return valve fitting seated in the standard andconnected to the discharge pipe, said fitting having a by-passcommunicating with "the discharge pipe, in combination with a fill pipeopening to the standard through the non-return valve fitting, and asecond pipe connecting the tandard with the working tank; substantiallyas described.

6. In a liquid dispensing apparatus, a working tank, a standard risingtherefrom, a discharge pipe rising through the standard, anon-returnvalve fitting arranged in said standard and associated with thedischarge pipe, and means for filling the work-. ing tank through saidnon-return valve fitits associated non-return valve fitting and floatvalve, through the standard for the purposes specified.

In testimony whereof I have signed my name to thisspecification.

SAMUEL DONNELLON LOVE.

